MIAmaxent 0.4.0

Model ranking within selection rounds based on p-value and then F-statistic (tiebreaker), rather than simply F-statistic
Directories specified by 'dir' argument are created if they do not already exist.
Existing results in directories specified by 'dir' argument are overwritten, if desired.
Fixed bug in selectEV that occurred when the last round of model selection before interaction terms did not result in a significant variable.
Unnecessary dependency on Hmisc removed.

MIAmaxent 0.3.7

Removed version minimums for dependencies which are default packages, to allow r-oldrel binary.
Changed names of toy data used in examples for better organization.